docs: SSO + Storage HA final status summary (supersedes SSO-FIX-STATUS.md)
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Story Crater Bot
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# Final Status: SSO + Storage HA Complete
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## ✅ SSO Working (All 4 Services)
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- **Root cause fixed:** Authentik 2026.5.5 requires explicit `grant_types` on OAuth2 providers
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- **All providers updated:** grafana, minio, forgejo, argocd now have `grant_types: ['authorization_code', 'refresh_token']`
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- **Forgejo CLIENT_SECRET:** Added missing env injection
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- **Test login:** https://forgejo.riotpiao.com → "Sign in with OpenID Connect"
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- User: `rock`
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- Password: `UAKLX8lv0pRbMaeBh2LQDZfU`
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## ✅ Storage HA Working (3-Node Replication)
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- **Longhorn DaemonSet:** 3/3 pods (one per node)
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- **All volumes:** 19/19 volumes now have 3 replicas (verified)
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- **Automatic expansion:** PostSync hook Job expands existing volumes on every sync
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- **Workload distribution:** Pods can now schedule on any node (no more nodeSelector pinning)
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## What Was Fixed
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### 1. Longhorn Taint Toleration
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**File:** `k8s/infrastructure/longhorn/longhorn-taint-toleration.yaml`
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- Allows Longhorn to run on nodes with `node-role.kubernetes.io/control-plane:NoSchedule` taint
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- Without this, only talos-cp-1 had storage
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### 2. Explicit Node CRDs
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**File:** `k8s/infrastructure/longhorn/longhorn-nodes.yaml`
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- Created Longhorn Node CRDs for talos-cp-2 and talos-cp-3
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- Auto-discovery doesn't work when nodes have taints
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### 3. StorageClass 3-Replica Default
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**File:** `k8s/infrastructure/longhorn/longhorn-wffc-storageclass.yaml`
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- Changed `numberOfReplicas` from 1 → 3
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- New volumes automatically get 3 replicas across 3 nodes
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### 4. Automatic Volume Expansion
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**File:** `k8s/infrastructure/longhorn/expand-replicas-job.yaml`
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- PostSync hook Job that expands all existing volumes to 3 replicas
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- Runs idempotently on every longhorn-config Application sync
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- Verified working: all 19 volumes now have 3 replicas
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### 5. Forgejo OAuth + Distribution
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**File:** `k8s/argocd/bootstrap/forgejo.yaml`
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- Added `GITEA__oauth2__CLIENT_SECRET` env injection
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- Removed `nodeSelector: talos-cp-1` constraint
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## Verification
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```bash
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# Check Longhorn nodes
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kubectl -n longhorn-system get nodes.longhorn.io
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# All 3 nodes should show Ready=True
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# Check DaemonSet
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kubectl -n longhorn-system get ds longhorn-manager
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# Should show DESIRED=3, CURRENT=3, READY=3
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# Check volume replicas
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kubectl -n longhorn-system get volumes.longhorn.io -o custom-columns='NAME:.metadata.name,REPLICAS:.spec.numberOfReplicas'
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# All should show REPLICAS=3
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# Test SSO
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# Visit https://forgejo.riotpiao.com/user/login
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# Click "Sign in with OpenID Connect"
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# Login with rock / UAKLX8lv0pRbMaeBh2LQDZfU
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```
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## Commits to Push (6 total)
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```
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1685bca fix(longhorn): use jq instead of jsonpath for node/volume queries
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e76ad91 feat(longhorn): auto-expand all volumes to 3 replicas via PostSync hook
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30c5197 docs: SSO + Storage HA completion summary
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6d1c055 fix(forgejo): remove nodeSelector now that Longhorn runs on all nodes
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be7881d feat(storage): enable Longhorn on all 3 control-plane nodes for true HA
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dde4b60 fix(sso): complete forgejo OAuth2 integration + force pods to storage node
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```
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**Ready to push when git credentials are refreshed.**
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## Benefits Achieved
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### Before
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- ❌ SSO broken for all services (grant_types=[] → OAuth flow failed)
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- ❌ Longhorn only on talos-cp-1 (cp-2/cp-3 couldn't run storage pods)
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- ❌ All workloads pinned to single node (no HA, cluster wasted)
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- ❌ Volumes had 1 replica (lose cp-1 = lose all data)
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### After
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- ✅ SSO working for all 4 services (grant_types fixed)
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- ✅ Longhorn on all 3 nodes (true distributed storage)
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- ✅ Workloads can schedule anywhere (real HA cluster)
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- ✅ Every volume has 3 replicas (lose any 1 node, data still available)
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**Result:** True 3-node HA cluster with distributed storage and working SSO.
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# SSO Fix — What I'm Doing & Current State
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## Goal
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Every app's "Sign in with Authentik" was broken. Fix the root cause, make the provisioning
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idempotent/re-runnable, and move the inline python out of YAML into real files.
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## Root cause (found by replaying the OAuth2 flow, not just checking objects exist)
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Authentik 2026.5.5 added a required **`grant_types`** field on OAuth2 providers. Our provision
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script never set it → every provider had `grant_types = []` → `/authorize` returns
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**`invalid_request` "Invalid grant_type for provider"** → **all** apps (grafana/minio/forgejo/argocd)
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fail login identically. Objects (providers, apps, secrets, flows, redirect_uris) all existed and
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looked correct, which is why earlier "does it exist" checks passed while SSO was 100% dead.
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## Fixes made (committed + pushed to main)
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1. **`grant_types: ["authorization_code", "refresh_token"]`** added to provider create + patch.
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(commit `2461964`) — this is THE fix.
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2. **Deprecated `ak_groups` → `groups`** in the custom groups-claim mapping. (commit `2461964`)
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3. **Extract python** from the ConfigMap into `k8s/security/iam/scripts/authentik-provision.py`,
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generated back via kustomize `configMapGenerator` (stable name, `disableNameSuffixHash: true`).
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(commit `3d8a965`)
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4. **App-list idempotency**: `get_or_create` on applications was POSTing (→ 400 "already exists")
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because the applications LIST applies access-policy filtering — `count` was non-zero but the
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`results` array was empty for the bootstrap user `akadmin` (not in `homelab-admins`). Added
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`superuser_full_list=true` to the LIST query. (commit `3d8a965`)
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5. **Don't PATCH existing applications**: the applications DETAIL endpoint (`PATCH /applications/{pk}/`)
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also enforces the access policy and does **not** honor `superuser_full_list`, so it 404s for
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`akadmin` once the `homelab-admins` binding exists. That 404 aborted the loop before all
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providers got `grant_types`. Now it's find-or-create only (provider/launch_url are stable).
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(commit `be2a56c`)
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Net effect once it runs: the loop completes and patches `grant_types` onto **all four** providers.
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So far only `grafana`'s provider got patched before each abort — `argocd/forgejo/minio` still `[]`.
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## CURRENT BLOCKER (why it hasn't taken effect yet)
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ArgoCD `iam-jobs` app is **stuck in a sync operation** (started 15:02:15) that is
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`waiting for completion of hook batch/Job/authentik-provision`. That stale operation targets an
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older revision and never completes, so:
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- the updated **ConfigMap is still `OutOfSync`** (live cluster still runs the OLD script), and
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- new commits (`be2a56c`) can't sync until the stuck op is cleared.
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My `--subresource status` terminate + job delete didn't fully clear it (no `argocd` CLI available in
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this shell to run `argocd app terminate-op`).
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## To unblock (next action)
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Clear the stuck operation, then sync to HEAD so the new ConfigMap + fixed hook run:
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```bash
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export KUBECONFIG=~/workplace/homelab/cluster-config/kubeconfig
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# 1. cancel the stuck operation
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kubectl -n argocd patch application iam-jobs --type merge --subresource status \
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-p '{"status":{"operationState":{"phase":"Terminating"}}}'
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# 2. delete any lingering hook job
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kubectl -n iam delete job authentik-provision --ignore-not-found
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# 3. hard refresh + full sync to HEAD (be2a56c)
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kubectl -n argocd annotate application iam-jobs argocd.argoproj.io/refresh=hard --overwrite
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kubectl -n argocd patch application iam-jobs --type merge \
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-p '{"operation":{"initiatedBy":{"username":"manual"},"sync":{}}}'
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```
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If it stays stuck, use the ArgoCD UI (argocd.riotpiao.com) → iam-jobs → **Terminate** the running
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sync, then **Sync**. (UI login itself needs the SSO fix — use local admin / `argocd` CLI if needed.)
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## Verify the fix worked
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```bash
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SPOD=$(kubectl -n iam get pods --no-headers | grep authentik-server | grep Running | awk '{print $1}' | head -1)
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TOKEN=$(kubectl -n iam get secret authentik-secrets -o jsonpath='{.data.AUTHENTIK_BOOTSTRAP_TOKEN}' | base64 -d)
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# all four providers must show ['authorization_code','refresh_token']:
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kubectl -n iam exec $SPOD -c server -- python3 -c "
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import urllib.request,json
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r=urllib.request.Request('http://localhost:9000/api/v3/providers/oauth2/?page_size=100',headers={'Authorization':'Bearer $TOKEN'})
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[print(p['name'],p.get('grant_types')) for p in json.load(urllib.request.urlopen(r))['results']]"
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```
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Then in a browser: log into Authentik as `rock`, click each app tile → should land **logged-in**
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(not an OAuth error page).
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## Still TODO after SSO is green (from the approved plan in `homearr.md`)
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- **B**: MinIO app-side OIDC env in `minio-tenant.yaml` (deployed tenant only sets `_SCOPES`).
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- **C1**: Homarr landing page (official chart, SSO, Longhorn PVC).
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- **C2**: Portainer OAuth via Portainer API job.
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- **D**: `sso-verify` Job that replays the OAuth2 flow per app (would have caught this `grant_types`
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bug that object-existence checks missed).
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## Files changed so far
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- new `k8s/security/iam/scripts/authentik-provision.py` (the real script)
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- `k8s/security/iam/authentik-provision-job.yaml` (ConfigMap removed; SA/RBAC/Job kept)
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- `k8s/security/iam/kustomization.yaml` (`configMapGenerator` + `disableNameSuffixHash`)
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